Under Solaris 10,I compile following file,
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/termios.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#define _IO_UNBUFFERED __SNBF
#define _IO_LINE_BUF __SLBF
#define _IO_file_flags _flags
#define BUFFERSZ(fp) (fp)->_bf._size
void pr_stdio(const char *, FILE *);
int
main(void)
{
FILE *fp;
fputs("enter any character\n", stdout);
if (getchar() == EOF)
err_sys("getchar error");
fputs("one line to standard error\n", stderr);
pr_stdio("stdin", stdin);
pr_stdio("stdout", stdout);
pr_stdio("stderr", stderr);
if ((fp = fopen("/etc/motd", "r")) == NULL)
err_sys("fopen error");
if (getc(fp) == EOF)
err_sys("getc error");
pr_stdio("/etc/motd", fp);
exit(0);
}
void pr_stdio(const char *name, FILE *fp)
{
printf("stream = %s, ", name);
/*
* The following is nonportable.
*/
if (fp->_IO_file_flags & _IO_UNBUFFERED)
printf("unbuffered");
else if (fp->_IO_file_flags & _IO_LINE_BUF)
printf("line buffered");
else /* if neither of above */
printf("fully buffered");
printf(", buffer size = %d\n", BUFFERSZ(fp));
}
It raise following errors
In function 'pr_stdio':
error:structure has no member named '_IO_file_flags'
error:'_IO_UNBUFFERED' undeclared
error:'_IO_LINE_BUF' undeclared
error:structure has no member named '_IO_buf_end'
error:structure has no member named '_IO_buf_base'
Which head file should I use?
Thanks